https://learn.microsoft.com/en-us/uwp/api/windows.perception.spatial.surfaces.spatialsurfaceobserver.setboundingvolumes?view=winrt-26100
SpatialSurfaceObserver.SetBoundingVolumes Method (Windows.Perception.Spatial.Surfaces) - Windows...
Sets the list of bounding volumes that this observer will track for new, updated or removed surfaces.
methodwindowsperceptionspatialsurfaces